/**
 * Copyright (C) 2011 Angelo Zerr <angelo.zerr@gmail.com> and Pascal Leclercq <pascal.leclercq@gmail.com>
 *
 * All rights reserved.
 *
 * Permission is hereby granted, free  of charge, to any person obtaining
 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
 * without limitation  the rights to  use, copy, modify,  merge, publish,
 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package fr.opensagres.xdocreport.template.textstyling;

import java.util.HashMap;
import java.util.Map;

import fr.opensagres.xdocreport.core.registry.AbstractRegistry;
import fr.opensagres.xdocreport.template.discovery.ITextStylingTransformerDiscovery;

/**
 * Text styling registry stores instance of {@link ITextStylingTransformer} for
 * text styling kind {@link SyntaxKind} (Html, Mediawiki, etc...).
 * 
 * <p>
 * Instance of {@link ITextStylingTransformer} must be declared in files
 * META-INF\services\fr.opensagres.xdocreport.template.discovery.
 * ITextStylingTransformerDiscovery
 * </p>
 */
public class TextStylingTransformerRegistry extends
		AbstractRegistry<ITextStylingTransformerDiscovery> {

	private static final TextStylingTransformerRegistry INSTANCE = new TextStylingTransformerRegistry();
	public static final String KEY = "___TextStylingRegistry";
	public static final String TRANSFORM_METHOD = "transform";
	private final Map<String, ITextStylingTransformer> transformers = new HashMap<String, ITextStylingTransformer>();

	public TextStylingTransformerRegistry() {
		super(ITextStylingTransformerDiscovery.class);
	}

	public static TextStylingTransformerRegistry getRegistry() {
		return INSTANCE;
	}

	@Override
	protected boolean registerInstance(
			ITextStylingTransformerDiscovery discovery) {
		transformers.put(discovery.getId(), discovery.getTransformer());
		return true;

	}

	@Override
	protected void doDispose() {
		transformers.clear();
	}

	/**
	 * Returns the text styling transformer for the given syntax kind.
	 * 
	 * @param syntaxKind
	 * @return
	 */
	public ITextStylingTransformer getTextStylingTransformer(
			SyntaxKind syntaxKind) {
		return getTextStylingTransformer(syntaxKind.name());
	}

	/**
	 * Returns the text styling transformer for the given syntax kind.
	 * 
	 * @param syntaxKind
	 * @return
	 */
	public ITextStylingTransformer getTextStylingTransformer(String syntaxKind) {
		super.initializeIfNeeded();
		return transformers.get(syntaxKind);
	}

}
